/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2011, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
 * Other names may be trademarks of their respective owners.]
 *
 * ------------------
 * BarChartDemo1.java
 * ------------------
 * (C) Copyright 2003-2011, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   ;
 *
 * Changes
 * -------
 * 09-Mar-2005 : Version 1 (DG);
 *
 */
package com.feilong.tools.jfreechart.demo;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.GradientPaint;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.StandardChartTheme;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.CategoryLabelPositions;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

/**
 * A simple demonstration application showing how to create a bar chart.
 */
public class BarChartDemo1 extends ApplicationFrame{

	private static final long	serialVersionUID	= 1L;
	{
		// set a theme using the new shadow generator feature available in
		// 1.0.14 - for backwards compatibility it is not enabled by default
		ChartFactory.setChartTheme(new StandardChartTheme("JFree/Shadow", true));
	}

	/**
	 * Creates a new demo instance.
	 * 
	 * @param title
	 *            the frame title.
	 */
	public BarChartDemo1(String title){
		super(title);
		CategoryDataset dataset = createDataset();
		JFreeChart chart = createChart(dataset);
		ChartPanel chartPanel = new ChartPanel(chart);
		chartPanel.setFillZoomRectangle(true);
		chartPanel.setMouseWheelEnabled(true);
		chartPanel.setPreferredSize(new Dimension(500, 270));
		setContentPane(chartPanel);
	}

	/**
	 * Returns a sample dataset.
	 * 
	 * @return The dataset.
	 */
	private static CategoryDataset createDataset(){
		// row keys...
		String series1 = "First";
		String series2 = "Second";
		String series3 = "Third";
		// column keys...
		String category1 = "Category 1";
		String category2 = "Category 2";
		String category3 = "Category 3";
		String category4 = "Category 4";
		String category5 = "Category 5";
		// create the dataset...
		DefaultCategoryDataset dataset = new DefaultCategoryDataset();
		dataset.addValue(1.0, series1, category1);
		dataset.addValue(4.0, series1, category2);
		dataset.addValue(3.0, series1, category3);
		dataset.addValue(5.0, series1, category4);
		dataset.addValue(5.0, series1, category5);
		dataset.addValue(5.0, series2, category1);
		dataset.addValue(7.0, series2, category2);
		dataset.addValue(6.0, series2, category3);
		dataset.addValue(8.0, series2, category4);
		dataset.addValue(4.0, series2, category5);
		dataset.addValue(4.0, series3, category1);
		dataset.addValue(3.0, series3, category2);
		dataset.addValue(2.0, series3, category3);
		dataset.addValue(3.0, series3, category4);
		dataset.addValue(6.0, series3, category5);
		return dataset;
	}

	/**
	 * Creates a sample chart.
	 * 
	 * @param dataset
	 *            the dataset.
	 * @return The chart.
	 */
	private static JFreeChart createChart(CategoryDataset dataset){
		// create the chart...
		JFreeChart chart = ChartFactory.createBarChart("Bar Chart Demo 1", // chart title
				"Category", // domain axis label
				"Value", // range axis label
				dataset, // data
				PlotOrientation.VERTICAL, // orientation
				true, // include legend
				true, // tooltips?
				false // URLs?
				);
		// NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
		// set the background color for the chart...
		chart.setBackgroundPaint(Color.white);
		// get a reference to the plot for further customisation...
		CategoryPlot plot = (CategoryPlot) chart.getPlot();
		// ******************************************************************
		//  More than 150 demo applications are included with the JFreeChart
		//  Developer Guide...for more information, see:
		//
		//  >   http://www.object-refinery.com/jfreechart/guide.html
		//
		// ******************************************************************
		// set the range axis to display integers only...
		NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
		rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
		// disable bar outlines...
		BarRenderer renderer = (BarRenderer) plot.getRenderer();
		renderer.setDrawBarOutline(false);
		// set up gradient paints for series...
		GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue, 0.0f, 0.0f, new Color(0, 0, 64));
		GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.green, 0.0f, 0.0f, new Color(0, 64, 0));
		GradientPaint gp2 = new GradientPaint(0.0f, 0.0f, Color.red, 0.0f, 0.0f, new Color(64, 0, 0));
		renderer.setSeriesPaint(0, gp0);
		renderer.setSeriesPaint(1, gp1);
		renderer.setSeriesPaint(2, gp2);
		CategoryAxis domainAxis = plot.getDomainAxis();
		domainAxis.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 6.0));
		// OPTIONAL CUSTOMISATION COMPLETED.
		return chart;
	}

	/**
	 * Starting point for the demonstration application.
	 * 
	 * @param args
	 *            ignored.
	 */
	public static void main(String[] args){
		BarChartDemo1 demo = new BarChartDemo1("Bar Chart Demo 1");
		demo.pack();
		RefineryUtilities.centerFrameOnScreen(demo);
		demo.setVisible(true);
	}
}
